Perhaps the question is some strange thing... !There are many answers for the question ,You add interesting threads ,, Each person must be in us has the idea. Before starting to work , You encourage members to participate in the forum ........ GOODBYE NOUR

If you want a forum that can attract a lot of users, you can build a promotion forum but since there are already a lot there, it would be hard to make it bigger/grow. Other than that, you can go through promotion forums since a lot of things like this are being discussed there.